High severity · published Jun 25, 2026
CVE-2026-4930
DPA Countermeasures weakening on Series 3 devices
7.1
CVSS
0.1%
EPSS
No
On KEV
Description
SYMCRYPTO is the SiXG301's host side hardware engine accessed by PSA crypto library that accelerates symmetric cryptographic operations (AES encryption/decryption and hashing).
DPA Countermeasures on SYMCRYPTO can be weakened (reduced entropy) by forcing certain seed values if an attacker gains code execution capability on the impacted device.
* Therefore, the keys loaded on SYMCRYPTO may be more vulnerable to extraction through DPA attacks than intended
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 3% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SS
Simplicity SDK · silabs.com
through *.* · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-4930
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-4930
community.silabs.com
https://community.silabs.com/068Vm00000sjHs3
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